rl_lang/interpreter/stdlib/fs/file_size.rs
1use crate::{
2 interpreter::{evaluator::Evaluator, values::Value},
3 utils::{errors::Error, span::Span},
4};
5
6pub fn std_file_size(eval: &mut Evaluator, path: String, span: Span) -> Result<Value, Error> {
7 let size = std::fs::metadata(&path)
8 .map_err(|e| {
9 eval.err(
10 format!("file_size(): failed to read \"{}\": {}", path, e),
11 span,
12 )
13 })?
14 .len();
15 Ok(Value::Integer(size as i64))
16}